Stone cutting or breaking machine



Sept. l, 1936. A R. PATTERSON STONE CUTTING OR BREAKING MACHINE Filed Feb. 2l, 1936 Patented Sept. 1, 1936 PATENT OFFICE Y c V 2,053,043

. s'roNE VcUrrlNG on aREAmNG MACHINE I 'I Alex Rossvlratterson, Dallas, Tex. Appiieatitn February .21, 1936, serial No. 65,153

' 2 claims. (01.125-23) The device forming the subjectmatter ofthis application is adapted to be used for cutting stone accurately to shape, although the device might be employed for working upon brick, concrete blocks and the like, as well as natural stone.

The usual method of bringing stone to accurate dimensions embodies theV useV of a drill, for making holes in the stone, wedges then being driven into the holes to force the stone apart.

As distinguished from such a procedure, this invention aims to provide a Vmachine which, through the instrumentality of blades" extending all the-way across vthe stone, cuts and wedges the stone apart, without resorting to drilling or hammering.

The invention aims to improve the construction of the frame which carries the working parts, to provide novel means for supporting the stone' for vertical adjustment', and to supply novel means for imparting movement, at the williof an operator, to the movable blade.

It is within the provincev of the disclosure to improve generally and to enhance thev utility of devices of that type to which' the invention 'appertains. Y v Y With the above and other objects inview, which will appear as lthe description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing:

Fig. 1 shows, in elevation, a device constructed in accordance with the invention;

Figs. 2, 3 and 4 are sections taken, respectively, on the lines 2 2, 3-3 and 4-4 of Fig. 1;

Fig. 5 is a section on the line 5-5 of Fig. 4;

Fig. 6 is a section on the line 6--6 of Fig. 3.

In carrying out the invention, there is provided a frame, including vertical, two-part standards I, each having a guideway 2. Supporting feet 3 are secured as shown at 4, intermediate their ends, to the lower ends of the standards I.

At their upper ends, the standards I are joined by a top member 5, which may be a composite structure. The top member 5 comprises inner bars 49, the ends of which abut against the inner edges of the standards I. Intermediate plates 6 overlap the inner bars 49, and the standards I are received between the end portions of the plates 6. Outer bars 1 are overlapped on the intermediate plates 6 and are as long as the intermediate plates. The intermediate plates 6 extend downwardly below the outer plates 1, and the lower edges of the outer plates 1 form shoulders, having functions which will be alluded to hereinafter. The parts 49, E and 1 are connected, between the standards I, by securing elements 8. Securing members 9 lconnect the end portions of the intermediate plates 6 and outer bars 1 with the standards I. Braces I extend between the outer plates 1 of the top bar 5 and the feet 3, the number of braces employed being left to the discretion of the manufacturer. The top member extends outwardly beyond the standards I, as Fig. 1 will show, the parts 49, 6 and 1 of the top member 5 being joined by rigid transverse ties II.

Raising and lowering devices I2 are provided, and may be in the form of screws, passing downwardly through the top member 5 and journaled in the ties II. Operating handles I4 are secured to the upper ends of the screws I2 and have hubs which rest on the ties I I.

The numeral AI5 designates, generally, a vertically adjustable deck. The deck I5 embodies bars I6, connected intermediate their ends by securing members I1, the bars I6 being spread apart at their ends to form forks I8 which receive the standards VI and slide vertically thereon. The forks I8 extend outwardly beyond the standards I, as can be seen in Fig. 4. The securing members I1 hold a spacer 50 between the bars I B.

Between the bars I 6 is located a lower blade I9, having a sharpened, inverted, V-shaped, wedge-like upper portion 20. The blade I9 is secured to the bars I5, detachably, by bolts 2| or equivalent means. The ends of the blade I9 are received slidably between the members of the standards I (Fig. 4). The lower edge of the blade I9 rests on the spacer 59, as shown in Fig. 5.

Blocks 22 are secured in the forks I 8, outwardly of the standards I, the raising and lowering screws I2 being threaded into the blocks. The bars I6 carry sills 23, which are disposed horizontally and parallel to the feet 3. Platforms 24 are mounted on the sills 23, on opposite sides of the standards I. The platforms 24 may be freely removable, but the operator may fasten them in place, if he wishes to do so, that being a simple matter requiring no illustration.

A slide 25 is mounted on the frame, for vertical adjustment, above the deck I5, and is a composite structure. The slide 25 may include inner bars 26, having their ends in slidable engagement with the inner edges of the standards I, outer plates 21 being overlapped on the inner bars 26, the bars 26 and the plates 21 being a laterally extended arm 34. Between the cross pieces 3|, the shaft 32 carries a crank disk 35, tov which oppositely-extended thrust members 36ers' pivoted, as indicated at 31. Toggle mechanisms are provided, and include upper links 38 and lower links 39, the lower ends of the upper 'linksafndthe upper ends of the lower links being pvivotedv at 40 to the outer ends of the thrust members 36.

The upperalinks 38 extend betweenk thev inner -plates 6 of the `top-member 5 and carry short shafts llI-,journaledin the plates 6. The shafts 4I bear against the shoulders formed by the lower edges of th`e .outer, bars 1- of the top member 5, andthe upper ends ofthe links 38 bear against thev inner bars 49 of thev top member 5, Owing to this constructiomstrain is taken off the plates `Ii, the said plates constituting merely a journaling means for 'the'v shafts 4I. l The lowerfends of the lower links 39,'extend between the outer plates 21 of the slide 25 and have shafts' 42 rjournaled in theplate 21. The lower ends o'f the links 39 abut against the-inner bars y26 of the. slide'25, and thus strain is taken oft" the plates- 21, those plates constituting merely a journaling means for the shafts42. l, l v- 1 The operationY :of the Adevice is simple. By means ofthe operating A'handles I4,-the screws vI2 may berotated thereby raising and lowering the deck I5, to adjust the height of the stone which is to be cut, the stone being supported on the wedge portion 26 of-.the lower blade I9, 'which'extends a little way, above the platforms 25, as shown inv Fig. 2, so, thatthe part-"2G canv have opportunity to act upon theA stone which is-to be cut. The stone, of course, may be shmmed up from the platforms 24.

When the arm 34 is swung, the shaft 32 rotates the disk 35, and the thrust members 36, together with the links 38 and 39, carry the slide 25 downwardly, the upper blade 29 being carried downwardly also. The part 30 of the blade 29 and the part 20 of the blade I9 cooperate to incise the stone and wedge it apart, all in one operation and allthawayacross the stone. It is unnecessary to drill the stone and to separate it by hammer-driven wedges. The machine turns out a neatly shaped article and can be used upon frail 'stone which cannot be worked otherwise without 'g'eltz Waste bf x-ii'ateial.

What is claimed is: Y 1.1n a machine for shaping stone, a frame,

.azdeckcarried' by the frame, a slide mounted to reciprocate on the frame, toward and away from the "deck," means for reciprocating the slide, a blade carried by the slide, a bladecarried byA the deck, the Vblades being provided, with wedge'f shaped stone-cutting and stone-separating edges, the-edgeof oneblade being presented towardrthe edge of the 4other blade, means for mounting'the deck on the frame.. for adjustment toward and away from'the slide, and lmeans under thereon*- trol of an operator for' adjusting the deck toward and awaypflrom the Slide.Y 1 Y f ,1

2. lIna machine for shaping stone, a frame, a. deck carried by theframe, va, slide mounted to 'reciprocate o n the fra-me, towardV and away from .the deck; means vfor :reciprocating the slide; a

blade carried bythe slide, ablagde carried by the deck, the blades being provided with, wedgeshaped -st onecutting and-stone-separating edges, the edge of one `blade being presented toward the edge of 4thefotgher blade, meansrfor mounting the deck" on the frame, for adjustmenttoward and away frorn theslide, and means under the control of an operator for adjusting the` deck toward and away -from the slide, the last-mentioned meansY embodying screws journaled in the frame and held against longitudinal movement therein, the screws being threaded into the deck and car- Wing thedeck i- V, f Y

, l ROSS PATTERSON. o,

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